Still wondering how you can eat a like an animal and still feel hungry? This is why! The typical Western diet comprises of foods that are so calorie dense they literally don't fill your stomach. This is good for maniacs that plan on climbing Mt Everest and need 5000+ calories a day, but not for the average person that only needs to get to work and back.
Your stomach has stretch receptors that tell your body how full it is. When you eat calorie dense foods such as processed foods, meats and oils is consumes very little space in your stomach, which fail to trigger these stretch receptors that tell your brain you're full. When you eat vegetables, fruits and legumes they consume much more space in your stomach for the same amount of calories. Did we also mention they're much better for you than most high caloric density food? This is due to it's vitamin, mineral and enzyme content that will
This doesn't mean you need to cut out all of these high caloric density foods, it just means you need to find balance and help fill your stomach with more of the good, vibrant colored stuff!